CVE-2025-15621: Insufficiently Protected Credentials in Sparx Systems Pty Ltd

Routine

MEDIUM 6.0UPGRADE

CVE-2025-15621 is a medium-severity flaw (CVSS 6.0) affecting enterprise architect. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Insufficiently Protected Credentials in Sparx Systems Pty Ltd. Sparx Enterprise Architect. Client does not verify the receiver of OAuth2 credentials during OpenID authentication

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.0 (Medium)
Attack vector	Local
Attack complexity	High
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.1% (top 99%)
CISA exploited list	No
Weakness	CWE-522
Published	2026-04-16
Last modified	2026-10-07

Publisher (CNA): National Cyber Security Centre Finland · Vendor: sparxsystems

Last updated 2026-10-07 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-16 13:16 UTCPublished CVE record published
2026-10-07 09:10 UTCUpdated Record last modified

sparxsystems enterprise architect UPGRADE

Affected: >= 16.1.1627 and < 17.1.1714

Fixed in: 17.1.1714

Safe to downgrade to: a release before 16.1.1627

1. Check installed version

apt-cache policy enterprise-architect || rpm -q enterprise-architect || enterprise-architect --version

2. UPGRADE to 17.1.1714 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade enterprise-architect

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade enterprise-architect

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 16.1.1627 (Debian / Ubuntu)

apt-cache madison enterprise-architect sudo apt install enterprise-architect=<VERSION_BEFORE_16.1.1627> sudo apt-mark hold enterprise-architect

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list enterprise-architect sudo dnf downgrade enterprise-architect-<VERSION_BEFORE_16.1.1627> sudo dnf versionlock add enterprise-architect

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-15621?

enterprise architect: upgrade to 17.1.1714. Exact commands for each OS are on this page.

Is CVE-2025-15621 being exploited?

CVE-2025-15621 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-15621 affect?

CVE-2025-15621 affects enterprise architect. Severity is medium (CVSS 6.0). Insufficiently Protected Credentials in Sparx Systems Pty Ltd. Sparx Enterprise Architect. Client does not verify the receiver of OAuth2 credentials during OpenID authentication

How urgent is CVE-2025-15621?

Priority 21/100. No elevated risk signals yet.

References

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